In-depth single-player maps, detailing every item, weapon, and enemy location on your route to Hell. Killer tips and strategies for each multiplayer map. Crucial stats and bios on all characters and enemies. Extensive overviews and tips on every weapon and item. Secrets and cheat codes, including storage cabinet combos. Full appendix of all PDAs in the game, where to find them, and what they contain. Thorough Marine basic training that will whip you into shape and make you a master fragger.